A NULL pointer dereference fix for vc4, and 3 patches to improve the sysfb device behaviour when removing conflicting framebuffers Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220630072404.2fa4z3nk5h5q34ci@houat